US1029872A - Gas-generator. - Google Patents

Description

1111113111111, J. w. TATRLET, T. 13.1111111511, w11. TRVTNT. al W. T. CHESTNUT.

GAS GENERATOR.

.121111011121011 TTLTD Tmm, 1911. 1,029,872, Patented June 18, 11912. s SHEETS-SHEET 1.

6% W. ttomeys COLUMBIA PLANDGRAPH co.. WASHINGTON. n.' c.

J. KILBURN, J. W. FAIRLEY, T. B. KIDNER, W. H. IRVINE da W. T. CHESTNUT. GAS GENERATOR. APPLIGATION FILED TEILE, 15511.

Patented June 18, 1912.

3 SHEETS-SHEET 2.

Witnesses Attorneys COLUMBIA PLANOGRAPH co.,\v^sH|NGTON, n. c,

J. EILBURN, J. W. EAIRLEY, T. B. KIDNER, W. H. IRVINE & W. T. CHESTNUT. GAS GENERATOR.

APPLICATION FILED P2119, 1911.

Patented June 18, 1912.

' 3 SHEETS-SHEET 3. 1? ,W A? /21 f i p as' C few f5 1 3 36 6 14*M 14 Q W 35; .M 1'0"?n 3 @2736 a 55 4 E 2 \13 ...42 .-'91 .f .gm if@ ll 1 f4 4f/ lT/ 1' 58 J ffl Witnesses Inventors Attorneys COLUMBIA FLANOGHMH co., WASHINGTON, D4 C.

'having an annular perforated riNrrEn sraras rarENr ormoni.

JOI-IN KILBURN, JOI-IN WESLEY FAIRLEY, THOMAS BESSELL KIDNER, WILLIAM I-IER- BERT IRVINE, AND WILLIAM BRUNSWICK, CANADA, ASSIGNORS TO MONITOR GAS GENERATOR COMPANY OF NEW YORK, N. Y., A CORPORATION OF NEW YORK.

GAS-GENERATOR.

Specification of Letters Patent.

Patented .I une 18, 1912.

To all whom t may concern.'

Be it known that we, JOHN KILBURN, JoriN WESLEY FAIRLEY, THOMAS BEssELL KIDNEE, WILLIAM HERBERT IRVINE, and

lWILLIAM TURNBULL CHESTNUT, all residing in the city of Fredericton, in the Province of N ew Brunswick, Canada, have invented certain new and useful Improvements in Gas-Generators; and we do hereby declare that the following' is a full, clear, and exact description of the invention, such as will enable othersskilled in the art to which it appertains to make and use the same.

rIhe invention to be hereinafter described relates to gas generators and particularly to acetylene gas generators of the inverted bell variety.

In order to more clearly disclose the construction, operation, and use of the invention, reference should be had to the accompanying drawings forming part of the present application.

Throughout the several figures of thedrawings like reference characters designate the same parts.

@ur applications 637 ,097 and 637,098 both,

filed July 6th, 1911 show the subject matter of the claims in this case, and also show and claim divers other features herein shown and described, but not claimed. IVe do not claim in this application anything claimed in either of the applications above mentioned.

In the drawings: Figure 1 is a side elevation of the generator, complete; Fig. 2 is a left hand end view of Fig. 1; Fig. 3 is a vertical longitudinal section of the complete generator; Fig. 4 is an enlarged side elevation of the carbid chamber and attachments, as shown in Fig. 1; Fig. 5 is a view similar to Fig. 4, looking toward the left of Fig. 1; Fig. 6 is a top plan view of Fig. 4; Fig. 7 is a plan view of the drain cock, removed; and Fig. 8 is a front view of the closure retaining device.

Referring to the drawings in detail, 1 indicates a gas generating tank provided with an upwardly extending neck 2 adapted to loosely receive a removable cast iron collar supporting flange 3. Upon flange 3 rests a similar and coperating flange of a corresponding collar similarly fitted about and supporting the lower end of a removable carbid receptacle 4 of usual and well known form.V The two annular flanges may be readily and solidly connected by bolts or the like, as will be evident If desired, the collars may be soldered or otherwise solidly secured to the neck 2 and the carbid receptacle 4. rIhe upper part of this generating tank is connected by an elbow pipe 5 with a vertical gas delivery pipe-6 (Fig. 3) which is adapted to deliver the gas to the interior of a bell 7 slidably mounted in the gas tank 8. Gas may be drawn from the gas tank through the pipe 9, in the usual manner. Centrally arranged within the chamber 8 is a hollow guide tube or pipe 10 adapted to fit loosely within a similar tube 11 extending downwardly from the top of the bell. The tube 11 is provided with a plurality of perforatioiis 12 arranged at a predetermined point below the top of the bell. I/Vhen the gas beneath the bell forces it upward to such a point that the perforations 12 are above the surface of the water, the excess gas will escape through the perforations and out through the tube 10 to the lower compartment of the tank 8 and thence through an opening 42 by a pipe to the flue 41, and thence by afsuitable vent pipe to the outside of the building in which the generator is placed. In this way, the gas bell cannot be raised, by the gas, beyond a predetermined point.

In order to cut olf the generation of gas at the proper time, it is necessary to stop the feed of carbid to the generating tank. For this purpose, an' operating lever 13 (Fig. l) has been provided. 'Ihe long end of this lever is adjustably connected to an easily fusible strap on the top of bell 7 by means of a threaded rod 56 andcooperating nut 57 which may be a winged thumb nut as shown in Fig. 1 or a slightly modified form as shown in Fig. 3. This lever is fulcrumed on the top of a cup shaped cap 14 provided `with an annular, perforated, supporting flange 15adapted to rest upon and cooperate with a similar flange 10 formed on and extending from a ring 17 which is removably seated in a circular opening in the top of the carbid receptacle 4. The ring is adapted to support a cylindrical flanged guard tube 18 extending downwardly within the receptacle to within a short distance of the bottom, as clearly shown in Fig. 3. The cap 14 and flange 1G are detachably and securely connected by bolts or the like passed thro-ugh the perforations of their fianges. The short end of lever 13 is bifurcated and longitudinally slotted. One arm 19 of the bifurcated end of the lever is pivoted to the lever at 20, to swing laterally therefrom. A threaded rod 21 projects through the slot of the lever 13 and is provided with an adjusting nut 22 screwed down thereon. Normally, the arm 19 is held in operative position by means of a rockable yoke 23 provided with off set arms 24 and 25 and pivotallyv mounted on the end of the stationary arm of the lever 13. The voke is provided with a notch or recess adapted to receive or seat the end of the movable arm 19 and hold it parallel with the fixed arm of the lever, thereby supporting the nut 22. off set arm 24 underlies a horizontal rock shaft 2G revolubly journaled in a suitable bearing formed as a part of one side of the cap 14. This shaft is provided with an outer arm 27 detachably connected thereto, and an inner arm 23 which projects downwardly within the guard tube 13. The outer arm is pivotally connected to the lower end of the rod 21 and the inner arm is pivotally connected to the upper end of a valve rod 29, on the lower end of which is fixed a plug valve 30, preferably rubber faced, adapted to close the discharge or delivery opening for delivering carbid to the interior of the generating tank. Slidably mounted on the valve rod 29, above the plug valve 30, is a cup shaped valve 31 adapted to seat itself, by gravity, slightly in advance of the plug` valve 30 and to remain seated a short while after the plug valve has been lifted. The result of this construction is, that as soon as the bell 7 falls below a predetermined point, the short bifurcated end of the lever 13 will be raised, carrying with it the rod 21 and thus raising the valves 30 and 31 to permit carbid to drop from the receptacle 4 to the generating tank 1. The bell then rises as a result of the gas just generated. In this way, the quantity or supply of gas generated is kept fairly constant. Should an excess quantity be suddenly generated, the bell will rise until the excess may escape through the perforations 12 and pipe 10 into the lower compartment of the gas tank. Should the supply of carbid in the receptacle 4 become exhausted and all the gas in the bell 7 be used, it is advisable, of course, to close the delivery opening of the carbid receptacle by seating the valves. This is effected automatically by engagement of the rock shaft 26 by the olf set arm 24, as the short end of lever 13 rises, due to the drop of the bell 7 As soon as the off set arm 24 engages the rock shaft 26, the yoke 23 will be rocked on its pivot and the arm 19 will be freed, easily moving out to inoperative position, thus breaking connection between rod 21 and lever 13 and allowing the lever end to rise while the rod drops. Valves 30 and 31, of course, seat themselves by gravity, as soon as the connection is thus broken. Consequently, under such circumstances, the valves will be closed and remain closed until recharging. In this way, no moisture can pass from the generating tank to the interior of the carbid receptacle, even though the apparatus'remain unused for a very considerable period.

In order to insure, with absolute certainty, the seating of the valves before recharging of the carbid receptacle, the closure plug 32 is held in plac-e by a threaded rod 33 provided with a wide head or hand wheel 34 and threaded through a yoke 35 mounted to swing above the plug 32-see Fig. S. Above this head extends the arm 36 0f a rod 37 mounted to slide vertically in the bearing or guide 33 fixed to the re ceptaele 4. Downwardly curved fingers 39 extend laterally from the arm 36 and lie directly over the head 34 and beneath the off set arm 25-between the off set arm 25 and head 34. Consequently, whenever the head 34 rises, as the rod 33 is screwed upwardly to release the plug 32, said head will engage the fingers 39 and arm 36 and carry them upwardly into engagement with the off set arm 25, thus rocking the yoke 23 and freeing the arm 19, to permit the valves 30 and 31 to seat themselves and so cut of' the feed of carbid during recharging of the receptacle.

In order to avoid excessive pressurein theupper part of the generating tank 1, a safety tube 40 has been provided. This tube extends downwardly through the top of tank 1 and its lower end project-s below the normal water line in the tank. The upper end of the tube communicates with an escape flue 41, and thence by a suitable vent pipe before mentioned to the outside of the building in which the generator is placed. Consequently, when the gas pressure in the generator tank exceeds a predetermined point, water will be forced upwardly through a tubular hollow agitator rod 43 and its casing 44 to a suiiicient extent to uncover the lower end of tube 40' and thereby permit escape of the excess gas, without causing siphoning of the water in the gas tank, as heretofore.

It is essential, of course, to provide means for the escape of the air and gas mixture from the generating tank during recharging, and during the emptying of the generating tank-this operation is more commonly known as venting the generating tank. For this purpose, a by-pass 45 is pro? is'e vided. One end of this yby-pass communi- Cates with the upper end of the escape flue 4l while the opposite end projects downwardly through the top of the generator tank. At a point just above its passage through the top of the generator tank, the by-pass communicates with the elbow pipe 5, At a point just above this connection, the by-pass is provided with a turn plug or valve 46 adapted to control passage of fluid therethrough. vWhen the turn plug or valve 46 'is open, the fluid will pass through the by-pass and escape into the flue 4l and thence to the outer air. 7When closed, the gas generated in the generating tank will pass, by way of elbow pipe 5, into the gas tank. To eii'ect opening of this plug or valve,`during charging of the carbid receptacle, the plug is provided with an operat-ing handle 47 which-is. exibly connected, by chain or like device 48, to the lower end of the sliding rod 37. The result is, that whenever the rod 37 is-raised for recharging, the valve 46 will be' opened and the chamber l will be vented. On the other hand, the rotary drain plug 49 is provided with a handle 50 which is connected by a rod 5l with the handle 47. The connection between the rod 5l and handle 47 is in the nature of pin-and-slot. The handle 47 is provided with a hand grip 52 the shank of which rests in the bottom of the slot or yoke 53 when the two valves or plugs 46 and l49 are in closed position. Consequently, when the handle 50 is swung upwardly to open plug 49, the rod 51 will operate handle 47 to open plug' 46 and thereby vent the generator tank. When the handle 50 is drawn down to close plug or valve 49, the handle 47 will not be operated and the valve or plug 46 will remain open until operated independent-ly by the grip 52, after the tank l has been filled. This venting of the generating chamber, of course, prevents siphoning of the water from the gas tank, as heretofore.

One particular advantage of having the agitator 43 made as a hollow tube is that it may then be used for filling the tank l with water.

In order to determine when the water in the tank has reached its proper level, a gage cock 54 is provided. This gage cock is extended through the wall of tank l and the wall of the agitator casing and communicates with the interior of the casing.

If desired, an outlet or escape may be provided whereby accumulated air, gas, or mixture of the same, may pass out fromthe lower compartment of the gas tank 9.

One particular advantage of the cap 14 and its connected parts is the ease and quickness with which it may be removed for inspection,

Another important feature is the placing of all operating parts on the exterior of the apparatus where they are easily accessible and where they may be quickly renewed, or repaired, when desired.

Y It is thought that the operation and use of the invention will be clear from the preceding' detailed description.

Changes may be made in the construction, arrangement, and disposition of the several parts of the invention without in any way departing from the field and scope of the same and it is meant to include all such within this application wherein only a preferred form has been disclosed.

l. A carbid receptacle having a charging opening, in combination with a generating' tank supplied by said tank and having a drain outlet, a gas from said generating tank, a valve governing the iiow through said pipe or by-pass at will, a valve for said drainage outlet, a closure for the charging opening, means for holding said closure in operative position, but adapted to free the same at will and a rod operatively connected to the valves for the by pass and the drainage outlet and provided with fingers extending over said means for holding the closure in order that the free-ing of the latter may also operate the said valves.

2. In combination with a carbid receptacle and a genera-ting tank supplied thereby, a gas tank having a gas bell therein, a lever operated by the rising of said bell, a valve controlling the outflow of said carbid receptacle and provided with a rod which extends up between a movable part of said lever and a neighboring relatively fixed part of the latter, a pivoted yoke provided with a notch normally engaging said movable part to hold it in place on said rod, a rockshaft arranged over a part of said yoke and adapted to move said yoke out of engagement when said yoke is raised into contact therewith, and means connecting said rockshaft to said lever to cause such rocking motion, the said yoke rising and falling with one of the arms of said lever, substantially as set forth.

3. A carbid receptacle, a generating tank and a feed valve between them, in combination with releasable means for suspending said valve, a movable yoke controlling such means and provided with an offset arm, stationary means adapted to engage and operate said yoke torelease said valve, a sliding r`od adapted to move said yoke into position to be thus actuated and means for raising said sliding rod into such position substantially as set forth.

4. In combination with a carbid receptacle, a generator tank supplied thereby and a valve adapted to cut-oft communication between them, a gas tank supplied by said generator tank and having a rising and fallpipe and by-pass leading ing bell and provided with a relatively fixed part and a relatively movable part, a lever moving with said bell, a pivoted yoke provided with an offset mounted on said lever and normally holding said parts to grip the stem of said valve, an adjustable part which acts on said yoke to move it into a different position, a rock-shaft arranged for contact wit-h said offset in such position and adapted to act thereon for tilting said yoke and freeing said valve in order that it may fall and seat itself, said adjustable part also simultaneously freeing the closure of the carbid receptacle.

5. In combination with a carbid receptacle, a generator tank supplied thereby and a valve adapted to cut ofi1 communication between them, agas tank supplied by said generator tank and provided wit-h a bell, a lever rising and falling with said bell and provided with separable gripping means for the rod of said valve, ing said parts together, a rock-shaft operated by said lever, a vertically adjustable screw, a vent valve and drain valve for said generator tank, a rod connected to these latter valves and arranged to be lifted by said screw for operating them, the said screw being arranged to move said yoke into position for contact with said rock-shaft in order that the latter may operate it to free the first mentioned valve.

6. A carbid receptacle having a closure for its charging opening and a. generating tank supplied thereby, in combination with a gas tank, a bell movable in the latter, a pipe conveying gas from the former tank to the latter, a lever operated by said bell and having a laterally movable part, a valve normally suspended by Said lever, but released by the lateral movement of said part and arranged on such release to fall and cut off carbid from said generating tank, a mova yoke normally holdable yoke normally holding said 'laterally movable part in operative position, a rocking device, means for moving said yoke into contact with said rocking device and thereby causing said yoke to rock. on its pivot and release said laterally movable part and means carried by said rock-shaft for operating said carbid feeding valve substantially as set forth.

7. A carbid receptacle having a charging opening and an outlet opening, in combination with a gas generating tank supplied thereby, a gas tank, a gas pipe Connecting the t-wo tanks, an escape flue, a by-pass connecting said pipe to said flue, a valve in said by-pass directing the gas alternately to said gas tank or said flue, a handle for said valve, a sliding rod, a flexible connection between said rod and handle, a closure for said charging opening, means removable at will from said closure but normally holding it in place and means, attached to and movable with said rod, arranged to be engaged and lifted by said closure holding means, a valve for cutting off the flow of carbid to the gas generating tank, devices for supporting the latter valve out of engagement, a movable yoke normally holding such devices in engaging and suspension position, and means for acting on said yoke to free said supporting devices and the latter valve and permitting the descent of the latter.

In witness whereof We have hereunto set our hands in the presence of two witnesses.

JOHN KILBURN.

JOHN WESLEY EAIRLEY. THOMAS BESSELL KIDNER. WILLIAM HERBERT IRVINE. WILLIAM TURNBULL CHESTNUT.

l'Vitnesses I. C. ANDULER, F. W. BARBOUR.

Copies of this patent Commissioner of Patents,

Washington, D. C.

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